Listen to Beethoven: Piano Concerto No. 4 in G Major, Op. 58 - 1. Allegro moderato online. Beethoven: Piano Concerto No. 4 in G Major, Op. 58 - 1. Allegro moderato is an Unknown language song and is sung by Alfred Brendel, Wiener Philharmoniker and Simon Rattle. Beethoven: Piano Concerto No. 4 in G Major, Op. 58 - 1. Allegro moderato, from the album Orchestral Beethoven, was released in the year 2020. The duration of the song is 17:41. Download Unknown songs online from JioSaavn.